Surely given that this is the UK the most important feature is what will it look like in red paint , call it a Spitfire and its a done deal-the Daily Mail will see to that.
Seriously though the Hawk which seems to have done a great job has got to be approaching 50 years old which means it was a concept design 55 years ago . And is it much use for pilots going on to fly A400s a dn 330s